General description

The goal of this SOOP is to detect and determine systematic differences of nanoflares (e.g. cadence, strength, location, magnetic field configuration) in different regions, e.g. quiet Sun, active regions and coronal holes, but also any other target region ”in-between”. Determining differences of the nanoflare characteristics, e.g. ocurrence rate, strength, exact location, along with the field configuration is crucial for our full understanding of the role the nanoflares in the corona heating; References on nanoflares: Guerreiro et al. (2015,2017); Krucker et al. 1998; Ishikawa et al. (2017).

This SOOP can be used to investigate single events or do statistical studies. The target should vary in way to cover different coronal environments.

Pointing requirements: Preferably run on disk center

Default SOOP duration: 1 hour
Triggers: Quiet Sun, coronal hole, active region

Observations requirement (baseline)


InstrumentModeComment

EUI

FSI synoptics


HRIs at < 10s cadence



HRIs cadence can vary within
a SOOP to allow longer time sequences

Will limit telemetry for entire orbit, therefore recommended to only run for 1 hour.

SPICE

High cadence dynamic study

Observation details as in SPICE Dynamics or Waves.

STIX

Normal or high cadence mode


PHI

HRT at high cadence

Observations used for context and information of possible changes of the magnetic field orientation in HR.

Science objectives


SAP objectiveTargetDurationOpportunity
(e.g., orbital requirements, solar cycle phase, quadrature ...)

Operational constraints 

Additional comments

1.2.1.3 Contribution of flare-like events on all scales

AR

3h

Perihelion, alignment with Earth, quadrature

All high cadence instruments work together


1.2.1.5 Determine whether coronal heating is spatially localized or uniform, and time steady or transient or impulsive for a wide range of magnetic loops with different spatial scales.

AR, QS, CH

3h

Perihelion, alignment with Earth, quadrature

All high cadence instruments work together


1.2.1.6 Resolve the geometry of fine elemental loop strands

AR

1h

Perihelion, alignment with Earth, quadrature

All high cadence instruments work together


1.2.1.7 Detect and characterise waves in closed and open structures

AR, QS, CH

3h

Perihelion, alignment with Earth, quadrature

All high cadence instruments work together


1.2.1.8 Investigate the role of small scale magnetic flux emergence in energizing the above laying layers

QS, AR

3h

Perihelion, alignment with Earth, quadrature

All high cadence instruments work together

Observation of the same target for several days

2.1 How do CMEs evolve through the corona and inner heliosphere?

Prominence

10h

Limb observations at perihelion, with Earth, quadrature.

All high cadence instruments work together


4.1.4 Study the influence of cancellations at all heights in the atmosphere / 4.3.5  How do magnetic fields emerge on the solar surface (coalescence, magnetic loops, convective collapse?)

Quiet Sun

6h

Perihelion, disk center and polar regions

All high cadence instruments work together


Instances run / planned

LTP6:

2022-03-07, 2022-03-08, 2022-03-17, 2022-03-30 (SOOP coordinators: S. Parenti, D. Berghmans)

LTP11:

2023-03-29 (SOOP coordinators: Hardi Pater - Susanna Parenti)
2023-04-04, 2023-04-05 (SOOP coordinators: Susanna Parenti)
2023-04-10: (SOOP coordinators: Luis Bellot-Rubio)
2023-04-15: (SOOP coordinators: Susanna Parenti (EUI), Terry Kucera (SPICE))

Science outcomes

Mandal et al. 2022, A&A, 656, 16
Chitta et al. 2022, A&A, 667, A166
Nelson et al. submitted

Original SOOP proposers

Margit Haberreiter, Sam Krucker, Alessandra Giunta

  • No labels

1 Comment

  1. Anik De Groof

    SOOP ID in SOOP Kitchen = RB1